What is a balanced and unbalanced audio signal?

Date:2023-01-09
A balanced audio signal is a three-wire audio signal, consisting of two identical audio signals, as well as a third ground reference wire. The two signals are often referred to as 'hot' and 'cold' signals, used for differential data transmission. This type of signal is designed to reject external noise and interference, providing a clean and clear signal with minimal noise. An unbalanced audio signal however is composed of only two-wire, with the two signals usually being of different amplitudes and frequencies. This type of signal is more susceptible to interference, meaning it is more likely to pick up external noise.
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